X-Git-Url: http://ftp.safe.ca/?p=safe%2Fjmp%2Flinux-2.6;a=blobdiff_plain;f=include%2Flinux%2Fnfsd%2Fexport.h;h=8ae78a61eea4f2eaa8f0c137a1f77b27b3d880e8;hp=736f0eafcedf56e84c8c4e13f994d00618efc1e9;hb=3d8986c7585457c45fd349b2c542c7c1ecd20843;hpb=e677bfe4d451f8271986a229270c6eecd1f62b3f

diff --git a/include/linux/nfsd/export.h b/include/linux/nfsd/export.h
index 736f0ea..8ae78a6 100644
--- a/include/linux/nfsd/export.h
+++ b/include/linux/nfsd/export.h
@@ -10,10 +10,9 @@
 #ifndef NFSD_EXPORT_H
 #define NFSD_EXPORT_H
 
-#include <asm/types.h>
-#ifdef __KERNEL__
 # include <linux/types.h>
-# include <linux/in.h>
+#ifdef __KERNEL__
+# include <linux/nfsd/nfsfh.h>
 #endif
 
 /*
@@ -40,10 +39,23 @@
 #define NFSEXP_FSID		0x2000
 #define	NFSEXP_CROSSMOUNT	0x4000
 #define	NFSEXP_NOACL		0x8000	/* reserved for possible ACL related use */
-#define NFSEXP_ALLFLAGS		0xFE3F
+/*
+ * The NFSEXP_V4ROOT flag causes the kernel to give access only to NFSv4
+ * clients, and only to the single directory that is the root of the
+ * export; further lookup and readdir operations are treated as if every
+ * subdirectory was a mountpoint, and ignored if they are not themselves
+ * exported.  This is used by nfsd and mountd to construct the NFSv4
+ * pseudofilesystem, which provides access only to paths leading to each
+ * exported filesystem.
+ */
+#define	NFSEXP_V4ROOT		0x10000
+/* All flags that we claim to support.  (Note we don't support NOACL.) */
+#define NFSEXP_ALLFLAGS		0x17E3F
 
 /* The flags that may vary depending on security flavor: */
-#define NFSEXP_SECINFO_FLAGS	0
+#define NFSEXP_SECINFO_FLAGS	(NFSEXP_READONLY | NFSEXP_ROOTSQUASH \
+					| NFSEXP_ALLSQUASH \
+					| NFSEXP_INSECURE_PORT)
 
 #ifdef __KERNEL__
 
@@ -83,9 +95,8 @@ struct svc_export {
 	struct cache_head	h;
 	struct auth_domain *	ex_client;
 	int			ex_flags;
-	struct vfsmount *	ex_mnt;
-	struct dentry *		ex_dentry;
-	char *			ex_path;
+	struct path		ex_path;
+	char			*ex_pathname;
 	uid_t			ex_anon_uid;
 	gid_t			ex_anon_gid;
 	int			ex_fsid;
@@ -106,36 +117,31 @@ struct svc_expkey {
 	int			ek_fsidtype;
 	u32			ek_fsid[6];
 
-	struct vfsmount *	ek_mnt;
-	struct dentry *		ek_dentry;
+	struct path		ek_path;
 };
 
-#define EX_SECURE(exp)		(!((exp)->ex_flags & NFSEXP_INSECURE_PORT))
 #define EX_ISSYNC(exp)		(!((exp)->ex_flags & NFSEXP_ASYNC))
-#define EX_RDONLY(exp)		((exp)->ex_flags & NFSEXP_READONLY)
 #define EX_NOHIDE(exp)		((exp)->ex_flags & NFSEXP_NOHIDE)
 #define EX_WGATHER(exp)		((exp)->ex_flags & NFSEXP_GATHERED_WRITES)
 
+int nfsexp_flags(struct svc_rqst *rqstp, struct svc_export *exp);
+__be32 check_nfsd_access(struct svc_export *exp, struct svc_rqst *rqstp);
 
 /*
  * Function declarations
  */
-void			nfsd_export_init(void);
+int			nfsd_export_init(void);
 void			nfsd_export_shutdown(void);
 void			nfsd_export_flush(void);
 void			exp_readlock(void);
 void			exp_readunlock(void);
-struct svc_export *	exp_get_by_name(struct auth_domain *clp,
-					struct vfsmount *mnt,
-					struct dentry *dentry,
-					struct cache_req *reqp);
-struct svc_export *	exp_parent(struct auth_domain *clp,
-				   struct vfsmount *mnt,
-				   struct dentry *dentry,
-				   struct cache_req *reqp);
+struct svc_export *	rqst_exp_get_by_name(struct svc_rqst *,
+					     struct path *);
+struct svc_export *	rqst_exp_parent(struct svc_rqst *,
+					struct path *);
 int			exp_rootfh(struct auth_domain *, 
 					char *path, struct knfsd_fh *, int maxsize);
-__be32			exp_pseudoroot(struct auth_domain *, struct svc_fh *fhp, struct cache_req *creq);
+__be32			exp_pseudoroot(struct svc_rqst *, struct svc_fh *);
 __be32			nfserrno(int errno);
 
 extern struct cache_detail svc_export_cache;
@@ -149,9 +155,7 @@ static inline void exp_get(struct svc_export *exp)
 {
 	cache_get(&exp->h);
 }
-extern struct svc_export *
-exp_find(struct auth_domain *clp, int fsid_type, u32 *fsidv,
-	 struct cache_req *reqp);
+struct svc_export * rqst_exp_find(struct svc_rqst *, int, u32 *);
 
 #endif /* __KERNEL__ */